Strawberry Cake Filling (Printable version)
Bright, smooth strawberry filling thickened with cornstarch—perfect for cake layers, cupcakes or stirred into yogurt.
# What you'll need:
→ Fruit
01 - 2 cups fresh strawberries, hulled and diced
→ Sweeteners & Thickeners
02 - 1/3 cup granulated sugar
03 - 1 tablespoon lemon juice
04 - 2 tablespoons cornstarch
05 - 1/4 cup water
→ Flavorings
06 - 1/2 teaspoon pure vanilla extract (optional)
# Directions:
01 - In a medium saucepan, add diced strawberries, granulated sugar, and lemon juice. Stir to coat the fruit evenly.
02 - Set the saucepan over medium heat and cook for 5 to 7 minutes, stirring occasionally, until juices release and berries soften.
03 - In a small bowl, whisk together cornstarch and water until fully combined with no lumps.
04 - Pour the cornstarch slurry into the saucepan. Stir constantly and cook for an additional 3 to 5 minutes until the mixture thickens and turns glossy.
05 - Remove saucepan from heat and stir in vanilla extract, if using.
06 - Allow the filling to cool completely before layering. The consistency will firm up further as it cools.
07 - Transfer any leftover filling to an airtight container and refrigerate for up to 5 days.
# Expert Advice:
01 -
- You get all the freshness of just-picked strawberries in every silky bite—no artificial taste, ever.
- Making it yourself means adjusting sweetness and tartness easily, so it always suits your cake or mood.
02 -
- If you don’t whisk the cornstarch and water until absolutely smooth, those tiny lumps will haunt you in the finished filling.
- Realizing the filling thickens a lot as it cools changed everything—don’t cook it down too far or you’ll end up with strawberry glue.
03 -
- Strain out seeds for a bakery-smooth finish if using raspberries or blending the filling.
- If your filling seems too thick after cooling, stir in a teaspoon of water at a time until it's just right.